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Implementing soft margin SVM algorithm using linear kernel for classification of hand written digits (3 and 8) with a detailed Matlab code. Contents Parameters Datasets Loading the data Zscore normalization initialization of vectors calculate Alphas Compute the near boundary coefficients Calculate Support Vectors Compute bias parameter b Compute the decision function on training set Compute […]

machine learning • matlab • teaching 1 Comment

Dong, J.J., Hwang, W.Y., Shadiev, R. and Chen, G.Y., 2017. Pausing the classroom lecture: The use of clickers to facilitate student engagement.¬†Active Learning in Higher Education, p.1469787417707617.   Pausing clickers can be useful to understand student engagement in the classroom by alerting a pause to a lecturer. In this article, the authors investigate the reasons […]

Apple released the iPhone X on November 3 2017 which includes a Face ID for authentication. A week later, hackers cracked Face ID with a composite mask of 3-D-printed plastic, and simple paper cutouts. This in combination tricked an iPhone X into unlocking. This could seriously poke a hole in the expensive security of the […]

biometrics • machine learning Leave a comment

General Matlab help file for solving Principal Component Analysis / Proper Orthogonal Decomposition in detail Contents Clear all variables, close all open windows (figures), clear screen File for initializing parameters Create the 2D grid Create snapshot matrix Generate the snapshots and store to snapshot matrix S Calculate mean centered data Proper Orthogonal Decomposition Calculate relative […]

machine learning • matlab Leave a comment